package com.java1412.service.impl;

import com.java1412.service.MessageProvider;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Source;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.support.MessageBuilder;

import javax.annotation.Resource;
import java.util.UUID;

/**
 * @author java1412
 * @create 2022-09-12 14:07
 */
@EnableBinding(Source.class) // 定义消息的推送管道（Source是spring的）
public class MessageProviderImpl implements MessageProvider {

    @Autowired
    private MessageChannel output;

    @Override
    public String send() {
        String serial = UUID.randomUUID().toString();
        output.send(MessageBuilder.withPayload(serial).build());
        System.out.println("*********serial : " + serial);
        return serial;
    }
}
